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    <title>Document</title>
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<script>
    var titleWord = function (word) {
        return word[0].toUpperCase() + word.substr(1).toLowerCase();
    }

    var titleCase = function (str) {
        var words = str.toLowerCase().split(' ');
        return words.map(titleWord).join(' ');
    }

    document.writeln(titleCase("I'm a little tea pot"));

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